diff --git a/el-gr/html-gr.html.markdown b/el-gr/html-gr.html.markdown
index 84caab74..0ca6e326 100644
--- a/el-gr/html-gr.html.markdown
+++ b/el-gr/html-gr.html.markdown
@@ -1,6 +1,6 @@
 ---
 language: html
-filename: learnhtml-gr.txt
+filename: learnhtml-gr.html
 contributors:
     - ["Dimitri Kokkonis", "https://github.com/kokkonisd"]
 lang: el-gr